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Finding the Fourth Proportional to 710,351.30, 980,299.24 and 388,082.27

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Solution

The fourth proportional to 710,351.30, 980,299.24 and 388,082.27 is: 535,561.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,351.30 : 980,299.24 = 388,082.27 : x
  2. Step 2: Convert to fraction form
    710,351.30/980,299.24 = 388,082.27/x
  3. Step 3: Cross multiply
    710,351.30x = 980,299.24 × 388,082.27
  4. Step 4: Simplify right side
    710,351.30x = 380,436,754,338.48
  5. Step 5: Solve for x
    x = 380,436,754,338.48/710,351.30
  6. Step 6: Final answer
    x = 535,561.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.